Xduoo X2 VS D3
| X2 | D3 | |
| Support format | MP3, WMA, APE, FLAC, WAV and other music formats | AAC /OGG/ MP3 / WMA，DSD: DSD64-DSD256 (.DSF&DFF)， APE: 16-24Bit/44.1K-96KHz， FLAC: 16-24Bit/44.1K-192KHz，WAV: 16-24Bit/44.1K-192KHz |
| DAC | No | Integrated chip, RKNANOD from ROCKCHIP |
| Opamp | lmh6643 | Rail to rail LMH6643 from TI company |
| Screen | 0.96 inch OLED Screen | 2 inch IPS HD Screen |
| Built-in Memory | No | 8GB |
| EQ setting | No | 5 types of EQ |
| Memory Card Slot | One | One |
| Expand Storage | 32GB TF/Micro sd card | 256GB TF/Micro sd card |
| Output | 250mW(32Ωload) | 250mW(32Ωload) |
| Frequency | 20Hz~20KHz(±0.5dB) | 10Hz~100KHz(±0.5dB) |
| Gain | + 3db | + 3db |
| Distrotion | 0.005% （1KHz） | 0.005% （1KHz） |
| S/N | 107dB | 107dB |
| Impedence | 8Ω〜150Ω | 8Ω〜150Ω |
| Aluminum Body | Alluminum alloy | CNC aluminum |
| Charging time | <2 hours | < 3 hours |
| Weight | 50g | 70g |
| Size | 70.6*40.6*12.5mm | 83*45*10mm |
| Battery Capacity | 450mAh | 900mAh |
| Battery Life | >10 hours | >20 hours |